As a world-class leader in customized sealing solutions, Mantaline offers the highest quality standards, state-of-the-art equipment and facilities, a dedicated workforce of trained engineers and unparalleled customer service building on its nearly 40-year history of success in a variety of markets. Located in the heart of the polymer industry, both the Aurora and Mantua, Ohio, facilities offer engineering, development, tooling, molding, extrusion, finishing and maintenance capabilities.